grab image from photoshop using sdk

the following sampe in the sdk shows how the client requests

a thumbnail from photoshop.

var idNS = stringIDToTypeID("sendDocumentThumbnailToNetworkClient")

var desc1 = new ActionDescriptor();

desc1.putInteger( stringIDToTypeID("width"  ), 640;

desc1.putInteger( stringIDToTypeID("height" ), 400);

desc1.putInteger( stringIDToTypeID("format" ), 1);

executeAction( idNS, desc1, DialogModes.NO );

The command above sends an image to the client, which has no metadata like exif.

BUT how can the client request a full  IMAGE (Picture with metadata and not downsized) not a thumbnail from photoshop

sending it to the client ??? Is there any message like above ?

where are the messages listed like "sendDocumentThumbnailToNetworkClient"

and other, I can't find them anywhere ??

best regards

Chris